The following graph shows the sales of cars (in thousands) in four cities in 4 years. Study the graph and answer the question.
| |
2016 |
2017 |
2018 |
2019 |
| City-1 |
4.3 |
3.5 |
3.9 |
4.1 |
| City-2 |
3.6 |
3.9 |
4.2 |
4.3 |
| City-3 |
5.2 |
4.3 |
4.9 |
4.9 |
| City-4 |
4.5 |
4.6 |
5.1 |
4.9 |
Which city has the highest percentage of sales, and in which year? | 
